tmrgo/demo/micro-go-course-master/section35/zipkin-kit/pb/string.proto

syntax = "proto3";

package pb;

service StringService{
    rpc Diff(StringRequest) returns (StringResponse){}
}

message StringRequest {
    string request_type = 1;
    string a = 2;
    string b = 3;
}

message StringResponse {
    string result = 1;
    string err = 2;
}